Bracket for adjustable shelving



(No Model.)

T. F. MARK. BRAGKET FOR ADJUSTABLE SHELVING.

No. 460,782. Patented Oct. 6, 1891.

By M w 2&

ATTORNEY,

UNITED STATES PATENT OFFICE. I

THOMAS F. MARK, OF FREMONT, NEBRASKA.

BRACKET FOR ADJUSTABLE SHELVING.

SPECIFICATION forming part of Letters Patent No. 460,782, dated October 6, 189] Application filed April 28, 1891. Serial No. 390,779. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS F. MARK, of Fremont, in the county of Dodge and State of Nebraska, have invented certain'useful Improvements in Portable and Adjustable Shelving; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to a new and novel improvement in portable and adjustable shelving, to be used in stores, warerooms, and libraries.

The object of this invention is to provide a portable shelving, that shall be provided with a bracket, and that shall be detachable, simple of construction, an d readily adjustable; and in furtherance of this object the invention consists in the construction, combination, and arrangement of parts, as hereinafter more fully described, and finally pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 represents a side elevation of the supporting-standard with brackets attached. Fig. 2 is a partly broken sectional view of one of the brackets. Fig. 3 shows a rear view of the detachable brackets, Fig. 4 shows the method of clamping the counter shelf; and Fig. 5 illustrates a top view of the wall-anchors, as used in supporting the standard, as will be described more fully hereinafter.

A in the drawings represents a T-shaped supporting-standard, preferably of steel and of any suitable length, which is securely but detachably held at the lower end within a shoe 1- This shoe is preferably of iron and screwed to the flooring where the standards are positioned and provided with three projecting lips adapted to snugly accommodate and retain the T-shaped standard, as shown in Fig. 1.

The standards A are used in sets and provided with any desirable number of brackets C. These brackets are cast and of any suitable metal. The top edge of these brackets is flat and provided with a suitable retaininglug D, adapted to work within an opening of the shelf-board, and thus secures the board in proper position. At the rear the brackets are provided with a clutching-stock adapted to hold and clasp the T-shaped supportingstandard, as shown in Fig. 1. In the rear the clutching-stock is open but provided with two projecting jaws E E, one upon each side, and projecting one at the top the other at the bottom beyond the jaw-opening, so as to hold and clasp the supporting-rod. The entrance to the jaw-opening is placed at an angle, so that when the stock has been righted the jaws overlap and clasp the bar upon which they have been placed, as shown in dotted line in Fig. Below is provided the curved shoe E, which extends so that it will ride against the web of the standard, as shown. At the lower end this shoe has a toe II, which extends beyond the shoe and rides against one side of the web, as illustrated.

I represents a wire, of any suitable spring material, which is embedded within the horizontal recess and provided at a suitable point with a small metallic roller K, eithersmooth, corrugated, or toothed, which readily revolves about a coil of the wire I. This wire terminates at the lower end in a thumb-piece I, by means of which it is operated. Being of spring metal the wire, as well as the connected roll, is vertically adjustable, so that the roll will be positioned either higher or lower, according to the thickness of the bar upon which the stock is mounted.

The operation of my device is as follows: When it is desired to adjust one of the brackets, the jaw-stock is carried at an angle, so that the web of the standard, which is always in front, enters the keyway, readily passing between the angular jaws E E until theweb abuts against the rear walls of said jaws, when the stock is brought into its proper and perpendicular position, the jaw E clasping the web below, the one marked E above a line passing through the center of the roll K,

the toe II in this position riding against its.

side of the web and thus forming a lock, so that the bracketis securely clutched. The bracket cannot be removed or detached before the toe II has been forced outward, so as to escape the web. During the adjustment of the bracket the spring-wire Iand the connected roll K have been forced downward by means of the thumb-piece I, so as to permit the entry of the web. When this has been accomplished, the springI is permitted to escape, by which means the roll K is impinged within the wedge-shaped recess formed by the angular wall and the face of the web, and thus securely binds and wedges the bracket to the standard. The weight of the brackets aids in binding the roll, which forces thejaws E E against the rear of the web, and thus fixes the bracket. When it is desired to adjust the bracket higher or lower, it is simply necessary to force the roll out of the wedge by means of the thumb-piece I, when the bracket may be readily moved. In retaining the standard at the upper end I employ the anchor M, comprising a hollow cylindrical stock out wedge-shaped into two sections and provided with a suitable number of spurs. Within this stock is held the key N, the head of which forms a stirrup for the standard, as will be understood by referring to Fig. 5. In the rear the key is provided with a lug N. When the anchor is to be secured,the lower section is embedded within an opening of the wall and the upper section driven into the opening while being guided upon the lower section. In attaching the shelves in small sections independent of a wall I use the bracket P,-. which elasps the web of the standard and is' secured by means of suitable screws. If desired, the lower counter shelf, which is always the largest and heaviest, may be attached by having one of its jaws separate and attached by means of a bolt, as shown in Fig; 4.

The device is noticeable because of its extreme simplicity, the whole being entirely portable and readily adjusted; and,

Having thus described my said invention, what I claim as new, and desire to secure by United States Letters Patent, is

1. In a portable and adjustable shelf, a bracket provided with a suitable jaw-stock, said jaw-stock being horizontally and vertically recessed and provided with two triangu presence of two witnesses.

lar jaws and a curved shoe and a spring-actuated roll within said vertical recess, in combinationwith a T-shaped supporting-standard, said jaws and shoe being adapted to detachably clutch said standard, substantially as shown, and for the purpose set forth.

2. In a portable and adjustable shelf, a bracket adapted to be detachably and adj'ustably held upon a T-shaped supportingstandard, said bracket being provided with a vertically and horizontally recessed jawstock, a keyway leading into said vertical recess at an angle, so as to divide said stock into an upper and lower clasping-jaw, a shoe having a locking-toe adapted to ride against the web of the standard, and a spring-actuated roll adapted to work within said vertical recess and against the web of the supportingstandard; all of said working effects being arranged to operate substantially as shown, and for the purpose set forth.

' 3. In a portable and adjustable shelf, a bracket adapted to be detachably and ad-- justably held upon a T-shaped supportingstandard, said bracket being provided with a vertically and horizontally recessed jawstock, a keyway leading into said vertical re cess at an angle, so as to divide said stock into an upper and lower clasping-jaw, a shoe having a locking-toe adapted to ride against the web of the standard, a spurred anchor comprising two wedge-shaped hollow cy1in-- drical stocks, and a key within said anchor adapted to support the T'-shaped standard, in combination with a spring-actuated roll adapted to work within said vertical recess and against the web of the supporting-standard, all of said working effects being arranged to operate substantially as shown, and for the purpose set forth.

In testimony whereof I affix my signature in THOMAS F. MARK.

Witnesses:

G. W. SUEs, F. D. -MUIR. 

